Ferroelectric ordering in ice nanotubes confined in carbon nanotubes

Chuanfu Luo, Wei Fa, Jian Zhou, Jinming Dong, Xiao Cheng Zeng

Research output: Contribution to journalArticle

54 Citations (Scopus)

Abstract

The ice nanotubes with odd number of side faces formed inside carbon nanotubes (CNTs) are found to exhibit spontaneous electric polarizations along their tube axes by means of molecular dynamics simulations. The physical mechanism underlying the quasi-one-dimensional (Q1D) ferroelectricity is an interplay between the Q1D geometrical confinement of CNTs and the distinct orientational ordering of the hydrogen bonds dictated by the "ice rule". This mechanism is fundamentally different from the conventional one seen in three-dimensional ferroelectric (FE) materials or in two-dimensional FE ice films. In addition, it is found that vacancies in the ice nanotubes can induce a net polarization normal to the tube axis.

Original languageEnglish (US)
Pages (from-to)2607-2612
Number of pages6
JournalNano Letters
Volume8
Issue number9
DOIs
StatePublished - Sep 1 2008

Fingerprint

Carbon Nanotubes
Ice
Nanotubes
Ferroelectric materials
Carbon nanotubes
nanotubes
ice
carbon nanotubes
Polarization
tubes
Ferroelectricity
ferroelectric materials
ferroelectricity
polarization
Vacancies
Molecular dynamics
Hydrogen bonds
hydrogen bonds
molecular dynamics
Computer simulation

ASJC Scopus subject areas

  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering

Cite this

Ferroelectric ordering in ice nanotubes confined in carbon nanotubes. / Luo, Chuanfu; Fa, Wei; Zhou, Jian; Dong, Jinming; Zeng, Xiao Cheng.

In: Nano Letters, Vol. 8, No. 9, 01.09.2008, p. 2607-2612.

Research output: Contribution to journalArticle

Luo, Chuanfu ; Fa, Wei ; Zhou, Jian ; Dong, Jinming ; Zeng, Xiao Cheng. / Ferroelectric ordering in ice nanotubes confined in carbon nanotubes. In: Nano Letters. 2008 ; Vol. 8, No. 9. pp. 2607-2612.
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